GEOGRAPHIC INFORMATION

Yellowstone River Corridor Land Use, 1948-2011

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Data Provider DTM Consulting, Inc., DTM Consulting, Inc.
Date 1948 - 2011
Content Type Downloadable Data
Abstract The land use mapping effort consisted of digitizing land use polygons using 1948-1950's, 1976-1977, 1999-2001, and 2011 aerial imagery in a GIS environment. The polygons are digitized at a scale of approximately 1:7,000, with a minimum mapping unit of approximately 1 acre. The goal of the delineation was to capture areas of similar land use as they appeared on the aerial imagery, while maintaining a consistent scale. This was notably challenging with the 1950's and 1976 images due to locally poor resolution of the photography. The 2001 and 2011 imagery has significantly better resolution. Four tiers of nested attributes were developed for the mapping effort. These classes were determined to be the highest level of detail permitted by all suites of imagery. See the accompanying report for complete details on the attributes. The study area is defined by the GIS-modeled 100-year inundation boundary, plus a 500-meter buffer. In total, over 700 square miles of area were mapped for each suite of imagerSome areas smaller than 1 acre were mapped if they were distinct and identifiable in the imagery. See the accompanying report for complete details on the mapping process.
Purpose The data were analyzed for changes in land use from year to year. The result of the analysis is presented in https://ftpgeoinfo.msl.mt.gov/Documents/Projects/Yellowstone_River_Clearinghouse/YRCDC_LandUse_Report_Final_011613.pdf.
Supplemental Information
The Montana State Library Geographic Information Services provides this product/service for informational purposes only. The Library did not produce it for, nor is it suitable for legal, engineering, or surveying purposes. Consumers of this information should review or consult the primary data and information sources to ascertain the viability of the information for their purposes. The Library provides these data in good faith but does not represent or warrant its accuracy, adequacy, or completeness. In no event shall the Library be liable for any incorrect results or analysis; any direct, indirect, special, or consequential damages to any party; or any lost profits arising out of or in connection with the use or the inability to use the data or the services provided. The Library makes these data and services available as a convenience to the public, and for no other purpose. The Library reserves the right to change or revise published data and/or services at any time.
Data Access https://ftpgeoinfo.msl.mt.gov/Data/Spatial/NonMSDI/Collections/Yellowstone_River_Clearinghouse/Geodatabases/Yellowstone_Historic_Land_Use.zip
Distributor Montana State Library
PO Box 201800
 Helena, MT 59620-1800
Telephone: 406-444-5354
TDD/TTY: Montana Relay 711
Fax: 406-444-0266
Email: geoinfo@mt.gov
Distribution liability The Montana State Library provides this product/service for informational purposes only. The Library did not produce it for, nor is it suitable for legal, engineering, or surveying purposes. Consumers of this information should review or consult the primary data and information sources to ascertain the viability of the information for their purposes. The Library provides these data in good faith but does not represent or warrant its accuracy, adequacy, or completeness. In no event shall the Library be liable for any incorrect results or analysis; any direct, indirect, special, or consequential damages to any party; or any lost profits arising out of or in connection with the use or the inability to use the data or the services provided. The Library makes these data and services available as a convenience to the public, and for no other purpose. The Library reserves the right to change or revise published data and/or services at any time.
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Metadata date 11/15/2013

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